> @@ -3380,6 +3382,10 @@ static int update_space_info(struct btrfs_fs_info
> *info, u64 flags,
> if (!found)
> return -ENOMEM;
>
> + ret = percpu_counter_init(&found->total_bytes_pinned, 0);
> + if (ret)
> + return ret;
> +
Leaks *found if percpu_counter_init() fails.
> - if (space_info->bytes_pinned + delayed_rsv->size < bytes) {
> + bytes_pinned = percpu_counter_sum(&space_info->total_bytes_pinned);
> + if (bytes_pinned + delayed_rsv->size < bytes) {
This stood out as being different from the rest of the comparisons.
Why manually sum the counters instead of letting _compare() optimize it
away if it can? _compare(&, bytes - delayed_rsv->size)?
- z
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